A call to Ovo over an unexpected charge landed me a big bill

I dialled the number I found on its website, got cut off, and
ended up with a £48 charge on my phone bill

I needed to contact Ovo Energy to discuss an unexpected
£261 bill.

I had had to give up work while recovering from two
liver transplants and the bill coincided with the notification that
my employment and support allowance was to stop, leaving me with no
income.

Source: FS – All-News2-Economy
A call to Ovo over an unexpected charge landed me a big bill